Commit 5ac37f87 authored by Michael Karcher's avatar Michael Karcher Committed by Ingo Molnar
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x86: fix ldt limit for 64 bit 



Fix size of LDT entries. On x86-64, ldt_desc is a double-sized descriptor.

Signed-off-by: default avatarMichael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent a361ee5c

include/asm-x86/desc.h

+2 −2
Original line number Diff line number Diff line
@@ -192,8 +192,8 @@ static inline void native_set_ldt(const void *addr, unsigned int entries) 
		unsigned cpu = smp_processor_id();

		ldt_desc ldt;



		set_tssldt_descriptor(&ldt, (unsigned long)addr,

				      DESC_LDT, entries * sizeof(ldt) - 1);

		set_tssldt_descriptor(&ldt, (unsigned long)addr, DESC_LDT,

				      entries * LDT_ENTRY_SIZE - 1);

		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT,

				&ldt, DESC_LDT);

		asm volatile("lldt %w0"::"q" (GDT_ENTRY_LDT*8));